Describe your suggestion:
I would love to make a way to make a 22.5 degree slant. Essentially a slant block that is a half slab. With two of them you could create a shallower slope than the current slant blocks, travelling up 1 block in a distance of 2 blocks. Probably the why to do that would be to actually make 2 different blocks, Upper half slant and Lower half slant. The lower half slant would be a half slab cut along the diagonal. The upper half slat would be a full block cut from the middle of one side to the top corner of the other side so it would line up with the lower half slant to for a continuous slope.

Describe alternatives you've considered:
Instead of two half slant blocks, upper and lower, just make the lower half slant able to be placed like a half slab in the top space or bottom space of a block space and when people use them together there would be little gaps below the ones placed in the upper spots.

Additional context:
https://i.imgur.com/rTj1uuu.jpg
https://i.imgur.com/UYy2n1H.jpg
https://i.imgur.com/SbOewj5.jpg